package com.example.demo.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class CalcController {

    @RequestMapping("/calc")
    public String calc(Integer num1,Integer num2){
        if(num1 ==null || num2==null){
            return "<h1>参数错误！</h1><a href='javascript:history.go(-1);'>返回</a>";
        }
        return "<h1>结果:"+(num1+num2)+"</h1><a href='javascript:history.go(-1);'>返回</a>";
    }
}
